Data projectors are devices that project computer output onto a screen or wall. They are widely used in classrooms, offices, conference rooms, and auditoriums for instruction and presentations.
LCD projectors and DLP projectors
Computer projectors are commonly used to display data or information onto a large screen for group viewing, training, or showing Web sites.
There is very little difference between theater and data projectors. They each use similar technology, each have similar inputs, image processors, lamps and lenses. In fact, many projectors classified as a home theater projector are used for data projection and data projectors are seen doing good service in a home theater. The differences tend be in the way a projector is optimized. Home theater models will be displaying video content rather than computer data. The image processor will be tuned to perform well with moving images rather than static images. Color control is adjusted to offer the best performance for content such as flesh tones, shadows and highlights. A data projector will be less concerned with such details. The way the projector operates may be slightly different. Data projectors often do not have user settings for color tuning, picture-in-picture, gamma controls (a dynamic contrast control). A good theater projector will have a component signal input while a data projector may only have a VGA input. Data projectors are likely to have a DVI input compared to theater projectors which will tend towards HDMI connectors. More important than any of the differences is the image quality. If a data projector delivers a great image from a DVD player, it should be considered along with theater projectors. After all, the sole purpose for a projector is to deliver a good image. It is enlightening to look at some manufacturers' websites. They often show different applications such as home theater, data, portable, education and so on. Many projector models will be found in several categories, demonstrating that even the makers can't precisely classify their own products.
Dirty Projectors was created in 2002.
Examples of these devices are CRT monitors LCD monitors Data Projectors.
Infocus projectors are made for the office, home, classroom, and for all presentation needs. Infocus projectors can also be useful in churches and the courtroom. The projectors are for presentation purposes.
LCD projectors are by far the best
Most projectors have the means to be a rear and front projection system. The only projectors that are unable to do this are the cheaper projectors you find at Office Depot used for powerpoint shows.
NEC's multimedia projectors cost from $310 to about $5,000. They also make cinema projectors which are even more expensive.
I haven't seen a retro school projectors on the market today but, If you really like the old school projectors you can get some restored projectors for a good price. anonymous@oola.com
Staples offers several styles and brands of LCD projectors online. They also carry DLP projectors which is a newer technology.
Gulliver thinks the political projectors are boring and out of their minds.